Which of the following would be an expected long-term change during primary succession on glacial moraines? Check all that apply.
A)increase in species richness
B)decrease in soil depth
C)increase in soil salinity
D)increase in soil nitrogen
E)alder replaced by spruce

Question

Quizplus · Accepted Answer

During primary succession on glacial moraines, one would expect an increase in species richness (A) as more organisms colonize the area over time. Soil depth would increase, not decrease, due to the accumulation of organic matter, making B incorrect. Soil salinity typically does not increase in such environments, making C incorrect. There is an increase in soil nitrogen (D) as nitrogen-fixing plants and microbial activity contribute to nitrogen accumulation. Finally, early successional species like alder are often replaced by late successional species like spruce (E) as the ecosystem matures.

Which of the Following Would Be an Expected Long-Term Change